Adjusting Wirquin JollyFill and Jolly Flush Valves

An unofficial look at Wirquin‘JollyFill / JollyFlush’ dual valve set-up / operation.

With Apologies to Wirquin as for all their videos and leaflets I’m not a plumber and I couldn’t find a page or video that made any sense to me. So, this is just a blog to record what worked for me . . :
Unless you are very confident and capable at DIY leave this stuff alone !

These instructions assume the tank and valves are fully assembled, properly connected to the loo and water supply and ready to set up. I assume you already know what you are doing with plumbing and DIY !! For reference there are some assembly videos online

Fill Valve adjustment
First set the final water level by sliding the fill valve ‘cup’ down to the bottom of its track then adjusting the fill valve float height on its threaded rod with the screw A so that it shuts off at the right level.    (Often marked on the back of the cistern tank) 

Flush the tank to empty and then quickly slide the cup upwards until it almost reaches the float in its lowest (fully open position).  The idea of the cup is that an ‘empty cup’  holds back shut off of the valve until the tank is 99% full, when the cup lip floods over into the cup and the float inside the cup rises to close the valve firmly and quickly. 

n.b. Failure to shut off will likely be the valve’s internal diaphragm (unscrew the threaded cap), dirt or wear on the ‘shut off pad’ recessed in the hinged end of the red arm or too fast a water flow rate through the valve (Fitting the correct flow restrictor or part closing any isolation valve may help with flow rates). 
A 2.5  – 3 minute full refill time seems optimum.

The Dual-flush Valve operation is complex with several functions but here goes.

The 2 flush buttons are marked with 1 and 2 blobs, water drops or something like that.

When pressing the ‘1’ button and letting go suction of air into the raised pipe/chimney by the departing water keeps the vertical pipe /chimney floating freely in it’s own little tank until the water level has fallen to a predetermined height in the main tank (around  ’50% flushed’). At that point its sealing washer will once again contact the bottom of the valve and block the outlet.  

The tank can then refill.

Pressing the ‘2’ button and letting go latches the flush chimney fully up/open until the float B is no longer afloat and its weight on a lever releases the latch.   The chimney and washer fall (with a ‘plonk’ ) and block the outlet.  
Adjust Screw B so that  40 – 50mm of water remains in the tank at this ’75% flushed’ point.  
(n.b.  I found that setting the float in its very lowest position (only 25mm of water left) may see the latch fail to release properly sometimes for some reason ).     On refilling, the float resets the latch mechanism for next time.

Holding the flush button down in either ‘1’  or ‘2’ mode will entirely empty the tank.  The only difference in operation is in ‘Hold Flush ‘2’ mode’ where the latch releases at some point as its float drops  but, in both cases, as the button is still being held down the ‘chimney’ must remain up, and the outlet remains open until the button is released by you.

Once you are entirely happy with operation and have completed all fill and flush adjustments (see illustration above); 
Stretch, squeeze or cut the overflow pipe (according to the type supplied) until the top opening is 10 – 30 mm above the final water level but still well below any other tank opening that might overflow instead !

Enjoy your loo 🙂

Published for interest only. Consult a qualified Plumber before attempting any plumbing work

© Copyright  Bruce Akhurst 2022